INVESTING: Rating agencies not alone in missing subprime mess
The business of rating debt securities is dominated by three firms: Moody’s, Standard & Poor’s, and Fitch. Their practices now are under fire with the subprime meltdown. Two weeks ago, we discussed securitization, a process whereby mortgages are pooled together, sliced up into securities, and sold to investors. The job of the rating agencies is to attach a rating to these securities that is based on their analysis of the risk of the underlying mortgages. Many investors, including pension plans,…